Add the full text of the CC-BY-4.0 license to the kernel tree as well as the required tags for reference and tooling. The license text was copied directly from this url, but a 'Creative Commons' was added before 'Attribution 4.0 International' in the first line: https://creativecommons.org/licenses/by/4.0/legalcode.txt Signed-off-by: Thorsten Leemhuis <linux@xxxxxxxxxxxxx> CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> CC: Christoph Hellwig <hch@xxxxxx> --- For context: Patch 2 of this series adds a text to the Documentation/ directory which (for now) uses "GPL-2.0+ OR CC-BY-4.0", as I want to make it easy and attractive for others to base their work on it. I'm not strongly attached to CC-BY-4.0, but it seemed like the best choice: it's designed for such usage and afaics better than using MIT for text files. Christoph, I stumbled upon commit 19e6420e4170 ("LICENSES: Remove CC-BY-SA-4.0 license text"), where you wrote: > Using non-GPL licenses for our documentation is rather problematic, as it can > directly include other files, which generally are GPLv2 licensed and thus not > compatible. Do you think this could be an issue here, too? If so, how? The document I added doesn't directly include other files; but yes, their title might get tracked in by sphinx when it's processing the document. Is that something we should worry about? Can I prevent this or other licensing troubles somehow in the text that uses it? Can I for example add a hint near the license tag to the header to prevent trouble? Maybe something like this: "Make sure to use the plaintext version straight from the sources in case you want to use this text under CC-BY-4.0, as processed versions (like the HTML version) of this text will have text in them that is taken from other files which that are not available under CC-BY-4.0 license"? Or should we declare CC-BY-4.0 only to be useful for dual-licensed content (like those in LICENSES/dual/)? Ciao, Thorsten --- LICENSES/preferred/CC-BY-4.0 | 405 +++++++++++++++++++++++++++++++++++ 1 file changed, 405 insertions(+) create mode 100644 LICENSES/preferred/CC-BY-4.0 diff --git a/LICENSES/preferred/CC-BY-4.0 b/LICENSES/preferred/CC-BY-4.0 new file mode 100644 index 000000000000..20c39f42d95f --- /dev/null +++ b/LICENSES/preferred/CC-BY-4.0 @@ -0,0 +1,405 @@ +Valid-License-Identifier: CC-BY-4.0 +SPDX-URL: https://spdx.org/licenses/CC-BY-4.0 +Usage-Guide: + To use the Creative Commons Attribution 4.0 International license put + the following SPDX tag/value pair into a comment according to the + placement guidelines in the licensing rules documentation: + SPDX-License-Identifier: CC-BY-4.0 +License-Text: + +Creative Commons Attribution 4.0 International + +======================================================================= + +Creative Commons Corporation ("Creative Commons") is not a law firm and +does not provide legal services or legal advice. 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